Measurements Median Calculator

Find the middle of a set of measurements without letting one extreme reading control the result.

How to use Measurements Median Calculator

1. Enter Measurements Values as matching lists where weights are used; separate numbers with commas, spaces, semicolons or new lines. 2. Keep all observations on one unit or scoring scale. 3. Select Calculate or press Enter, then read median. 4. Copy result copies the answer; Reset clears the form. Do not use thousands separators inside lists.

Why use this tool?

Describe the central reading when measurement values are skewed or include extreme observations.

How the calculation works

Sort the observations. For an odd count, return the middle value; for an even count, average the two middle values. Use one unit and the same measured quantity throughout. The result keeps that unit; the calculator does not assess instrument calibration or measurement uncertainty. Results use up to six decimal places, or six significant digits in scientific notation for nonzero magnitudes below 0.000001. Calculations use browser floating-point arithmetic. Each list supports up to 20,000 numbers. Entry and result magnitudes must not exceed 9,007,199,254,740,991; unrepresentable variance or weighted products are rejected. General descriptive-statistics reference: https://www.itl.nist.gov/div898/handbook/eda/section3/eda351.htm. Weighted conventions are defined explicitly on this page.

Example

For measurements 2.1,2.2,2.3,2.4, the median is 2.25.

Practical tip

The median describes the centre by rank. Keep repeated observations when they are real readings rather than accidental duplicate entries.